To ensure the best performance in your N1 System Manager environment, adhere to the following guidelines and recommendations:
Before you run discovery, tune the N1 System Manager as described in To Increase the N1 System Manager Performance.
Maximize the number of managed servers per group, and run operations against groups instead of against a large number of individual servers. Running operations on a group minimizes the number of groups you need to manage and minimizes the number of jobs you need to submit in order to accomplish a given task.